Cruciate ligaments. These are definitely observed inside your knee joint. They cross each other to variety an X With all the anterior cruciate ligament in front along with the posterior cruciate ligament in again. The cruciate ligaments control the back and front movement of the knee. Cure for ACL injuries https://www.tumblr.com/dr-bakul-arora/749917890130690048/knee-ligament-injuries-a-comprehensive-guide-to?source=share